Paper-box machine.



C. R. BANNIHR. PAPER BOX MA GHINE.

(Application filed Sept. 8, 1897. Renewed Nov. 30, 1898.)

Patented July 4, I899.

7 Sheets-Sheet (No Model.)

Fly. 1.

Q Q ZZMA.

%/ 62 MW A TTOHNE Y.

No. 628,062. Patented July 4, I899.

C. R. BANNIHR.

PAPER BOX MACHINE.

(Application filed. Sept. 8, 1897. Renewed Nov. 30, 1898.)

(No Model.) 7 SheBts-Sheet 2.

IN VE N 705 C. R. BANNIHR.

PAPER BOX MACHINE. (Application filed Sept. 8, 1897. Renewed Nov. 30,1898.)

Patented July 4, I899.

7 Sheets-Sheet 3,

'(No Model.)

W/TNESSES ATTORNEY.

No. 628,062. Patented July 4, I899.

C. R. BANNIHR.

PAPER BOX IACHINE. (Application filed Sept. 3, 1897. Renewed Nov. 30,189B.)

7 $heots-Sheet 4,

(No Model.)

//v vE/vro/x A TTOHNE r No. 628,062. Patented July 4, I899.

C. R. BANNIHR.

PAPER BOX HAGHINE.

(Application filed Sept. 3, 1897. Renewed Nov. 30, 1898.) No Model.) 7Sh6etsSheet 5.

.Fiyy. .4 .104 105 20,8 103 05 10 //v ENTOH Z T ZZ/ 1 171.9313, azum ATTOF/NE Y.

No. 628,062. Patented July 4, I899.

C. R. BANNIHR.

PAPER BOX MACHINE.

(Application filed Sept. 3, 1897. Renewed Nov. 30, 1898,)

(No Model.) 7 Sheets-$heet 6.

Figr. 14

IIIII/ I/IIIII/IIIIIIIII VII/III A TTOHNE Y,

Patented July 4, I899.

c. n. BANNIHR. PAPER BOX MACHINE.

(Application filed Sept. 3, 1897. Renewed Nov. 30, 1898.)

7 Sheets-Shaet 7,

'No Model.)

IN VE N 7'05 1 ATTORNEY.

WITNESSES and forming the boxes and means whereby I UNITED STATES CAESARR. BANNIHR,

PATENT O FICE.

onNEW YORK, N. Y.

PAPER-BOX MAC HIN sPncIrIcATIon forming part of Letters Patent No.628,062, dated July 4, 1899. Application-filed September 3, 1897.Renewed November 30, 1898. Serial No. 697,925. (No model.)

I To (1% whom it may concern:

Be it known-that I, CAESAR R. BANNIHR, of

.New York, in the county and State of New York, have invented certainnew and useful 5 Improvements in Paper-Box-Making. Ma-

chines, of which the following is a full, clear, and exact description.This invention relatesto paper-box-making machines, but moreparticularly to machines for' making folding paper boxes. The'primaryobject of the invention is to provide a simple and efficient machine forforming boxes from a strip or band of paper or similar material, so thatsaid boxes may be readily bent or folded upon themselves in. a collapsedposition in prder that the same may be readily and compactly arrangedfor transportation or'other purposes.

Further objects of the invention are to provide simple and efficientmeans for cutting the gum may be readily applied at the desired pointsalong the strip or band of paper before it is fed to the cutting andforming 5 mechanism of the machine.

With these and other objects in view the invention ceusists in theconstruction and combination of the several parts, substantially ashereinafter described'and then pointed out in the claims at the end ofthe description.

Referring to the accompanying drawings, forming a part of' thisspecification, in which similar figures and letters-of referencedesignate similar parts throughout the several views, Figure l is afront elevation of one the upper die having been forced downward toseparate a box-blank from the stock-strip. Fig. 2 is a side elevation,partly in section the position shown in Fig. 1. Fig. 3 is an enlargedfront elevation ofa fragmentary portion of the machine, partly insection, illustraing the cutting and folding mechanism an the meansforapplying gum or glue to the paper strip or band. Fig. 4 is a verticaltransverse section taken on the line IV IV of Figs. 3 and 5 and showingthe positions assumed by the gum-applying wheels during their upwardmovement. Fig. 5is a plan view, partly broken away, of the gum-applyingdevice, 'only a portionof the gum-containing pan or form of machineembodying my inven'tion,

and partly broken away, of the machine in lapsed .posftion.

matic detail view of the box-carrying belt or chain and means foroperating the same.

Fig. 7 is a detail perspective view of one of the links of thebox-carrying chain. Fig. 8 is a detail plan view of the'upper die. Fig.9 is a detail plan view of the lower die, the folding-arms, and thevertically-movable cutting-table and guide-rolls. Fig. 10 is afragmentary vertical sectional view of the lower die, taken on the lineX X-. of Fig. 9. Fig.

receptacle being. shown. Fig. 6 is adiagram= 11 is a detail view,'partlyin section, of a portion of the stock strip or band feedingmechanism. Fig. 12 'is a fragmentary detail perspective view of abox-blank and one of the folding-arms, illustrating the position of thelatter just prior to the forcing of the blank into the lower die. I Fig.13 is a detail view of the cutting off knife of the-lower die.

Fig. 14: is a'vertical sectional view, partly in elevation, of the upperand lower dies removed from the machine, the position of the upper diebeing no'rmal or that'prior to its downward movement. Fig. 15 is avertical sectional view similar to that shown in Fig.

1 4 except that theupper die is partly removed and has been forceddownward, so as to sever the blank from the, stock strip or band. Fig.16 is a vertical transverse section,-partly in elevation, of thefolding-plunger .and the pump for exhausting the air above the blankwhile the plunger is forced downward. Fig. 17 is a' detail plan view ofthe blank, illustrating in short lines the scoring-marks and bystippling the positionof the securing gum or glue. Fig. 18 is a detailsectional plan view through the body of the folding-plunger,

frame, on which may be arranged suitable Fig. 20 is a detailperspectiveview of centers 23, adapted to support the drum of thestock-reel 24, though the latter may be supported directly upon thefloor or other support, if so desired. The stock strip or band may passfrom the reel 24 over a jumping roller 26, carried by the ends of leverspivoted to the brackets 21 or to the floor or other support, in order toprovide sufficient slack in the strip and to remove the strain therefromand prevent rotation of the reel when the stock strip or band is movedforward by the feeding mechanism to be hereinafter referred to, theweight of the j ump-v ing roller 26 and the suspending-levers beingsufficient to rotate the reel on its downward movement.

The stock band or strip 25 may pass over a roller 27, journaled in thebrackets 21, and under the roller 28, also journaled in said brackets,and from there may pass over a roller 29, journaled in a sliding oradjustable frame 30, arranged upon the guide-rods 31, secured to thebed-plate 22 of the machineframe, and is then passed between the guides33, which aline the edges of the said band or strip, under theguide-roller 34, journaled in the guides 33, the latter being rigidlysecured to the bearings or supports of the bandfeeding mechanism 36.

As herein shown, the feeding mechanism 36 has two feed-rolls 37 and 38,having their shafts journaled in the bearings or supports 35 andprovided at one end thereof with gearwheels 39 and 40, which mesh witheach other in order that the feed-rolls may rotate in the properdirection. The upper feed-roll may halve its periphery milled andsecured to its shaft in any preferred manner, and on one end of saidshaft may be arranged two ratchet- Wheels 41 and 41*, having their teethof opposite pitch. To one end of the shaft is loosely mounted a diskwhich is provided with a spring-pressed pawl 42, which engages theratchet-wheel 41, so as to impart movement to the feed-rolls when thedisk is oscillated on the shaft. The disk is connected to a link 43,Fig. 11, which has one end thereof connected to a lever 43, pivoted tothe frame of the machine, said lever 43 being slotted for a portion ofits length and engaged by the end of a vertically-moving rod 44, thesaid rod having its upper end connected to a lever 45, which is pivotedto the frame of the machine and has one end arranged in the path ofmovement of the cam 46, (shown by dotted lines in Fig. 1,) secured tothe main drivingshaft '47, so that as the cam rotates the lever 45 willbe rocked on its pivot, so as to oscil-' late the lever 43 and throughthe link 43 imparta partial rotation to the feed-rolls through the pawl42 and ratchet-wheel 41. To the rod 44 is secured a bar 48, having a pinor projection 48, which on its downward movement engages a spring 49,secured to a pawl 50, the latter engaging the ratchet-wheel 41 at theproper time, causing the feed-rolls to move the proper distance, thespring 49 being adapted to permit-the bar 48 to havefurther downwardmovement after the pawl has engaged the ratchet-wheel. The pawl in thiscase is positively disengaged from the ratchetwheel by the pin 48 on therod or bar 48 engaging a bracket or arm 51 on the pawl during the upwardmovement of said bar.

The stock strip or band as it is fed forward passes betweenguide-rollers 52, Figs. 1, 3, and 9, journaled upon shafts held inplates 53, secured to the cutting-table 54. These rollers may be of anydesired number, and, as shown, there may be three or more journaled oneach shaft and suitably spaced apart by means of tubing interposedbetween the rollers or otherwise, the rollers being arranged to providean upper and a lower series, so that the stock strip or band may bereadily held and guided while being fed by the mechanism 36 to thecutting-dies 57 and 58. The upper die 57 is secured to a cross-head orslide 59 by bolts or otherwise, which cross-head is arranged to movevertically in suitable guides arranged on the frame 20 and is connectedby means of a rod 60 to a crank 61, secured to the driving-shaft 47, thesaid shaft being provided with the usualfast and loose pulleys forimparting motion thereto.

The dies are open andrectangular in form, and adapted to move verticallytherein is a folding-plunger 62,which is secured to a crosshead or slide63, also arranged in guides par- .allel with the guides of the slide orcrosshead 59, and is provided at or near the upper end thereof with asuitable can1-slot,which is engaged by an eccentrically-arranged pin orroller carried by the crank 61, the crossheads being arranged so as tohave a vertical movement when the shaft 47 is rotated and so timed thatthe plunger will not engage the material until the blank has been cut bythe dies 57 and 58. The upper die 57 is provided with end face-plates 64and side face-plates 65,each provided with suitable scoring edges 66upon their inner sides, adapted to register with. the inner edges of thelower die and mark the blank to indicate the body portion or bottom ofthe box or tray. Each end faceplate 64 of the upper die is provided withclearance-spaces 67 for the purpose of preventing the gum contained onthe blank from coming in contact with said face-plates, and the sideface-plates of said die have recessed or cut-away ends adjacent theouter edges of the end face-plates, adapted to register'with the raisedinclined knives 68 of the side piecesor face-plates 69 of the lower die,

the said lower die having end face plates or pieces 70, fitting betweenthe face-plates 69. The material while being fed is normally supportedabove the inclined knives of the lower die by means of springs 71, theupper die being provided with a knife 72, adapted to cut the stock-striptransversely thereof into the proper width of blank, while the lower dieis provided with a knife-plate 73, secured thereto and corresponding tothe form of the side numbered 508,594, and hence arenot broadly 85,which extends upwardly through the mais carried by the cross-head orslide 59'and face-plates '69 and the inclined knives and serves,together with the inclined knives, to hold the corner-flaps of the blankabove the bottom portion thereof, so as to have the start of the samewhile being formed. The knife 72 of the upper die moves over acutting-table 54, upon which the material rests, the said table beingyieldingly supported by means of the springs 7 3, so as to be depressedwhen the upper die is forced downward.

The parts thus far described in detail, with the exception of theguiding means between the feeding mechanism and the dies, aresubstantially the same as those disclosed in the patent granted to meNovember 14,v 1893, and

claimed herein, but only in combination with certain novel features,tobehereinafter referred to, though it is to be understood that any suitablemeans or mechanism may be substituted for the parts thus described,ifdesired.

For the purpose of applying gum at the proper points along the strip orband 25 I preferably employ a device such as shown at 74, Figs. 1 to 5,inclusive, which may be supported on the brackets 21 or other portion ofthe frame between the rolls 27 and 28. This gum or mucilage applyingdevice may consist of a tank 75, adapted to contain hot water or otherheating medium, which maybe supplied thereto in any suitable manner, andwhich may be slidingly held in grooves arranged in the brackets or theframe, as the case may be, and normally held therein in any suitablymanner, In this heating-tank may be arranged a pan or receptacle 76,adapted to contain mucilage or gum, in which is adapted to rotate thewheels 77, as will be presently explained. These wheels, which in thiscase are four in number, are preferably peripherallygrooved in order toapply the gum in lines from the raised'portion thereof in the form shownby stippling in Fig. 17 and have the shafts 78 thereof supported onlevers or arms 79, pivoted at 80 to the bar or support 81 on oppositesides thereof, this bar extending transversely of the machine and thegum-receptacle and rigidly secured to slide rods or bars 82 by screws orotherwise, which bars or rods are adapted to move vertically throughbosses or extensions arranged upon the heating-tank 75. The bars or rods82 have their lower ends slotted and engaged by rock-arms 83, pivoted tothe brackets on opposite sides thereof and connected so as to move inunison by means of a shaft or otherwise, one of said arms being extendedinwardly, as at 84, and connected to a vertically-movable bar chine atone side and to the rear of the cutting-dies, as shown in Figs. 1, 2,and 3, though instead of the rods 82 being slotted and engaged by thearms 83 they may be otherwise arranged, so as to be given a verticalmovement. This rod 85 has its upper'end engaged by a bracket orprojection 86, Fig. 2, which engages a not or collar on the rod whenmoving downwardly, so as to tilt the arms 83 on their pivots and forcethe gum applying wheels 77 against the stock strip or band 25, as shownby dotted lines in Fig. 4. Above the bracket or projection 86 isarranged a spring 87, which is interposed between said bracket and a nutor collar on the rod 85, the object of said spring being to provideayielding connection between the rod and the projection or bracket 86,so that said bracket when the slide or cross-head 59 moves upwardly toraise the rod, so as to'tilt the arms 83 on their pivots and return thegum-applying wheels 77 to their normal or lowered position the springwill yield suiiiciently to permit further movement of the die 57 and thebracket 86, though in some instances the parts may be returned bygravity, in which case the spring 87 may be dispensed with. Each of theshafts 78 of the gum-applying wheels has a ratchetwheel 88 rigidlysecured thereto, which are engaged by spring-pressed pawls 89, carriedby arms 90, loosely mounted, so as to oscillate vertically on theshafts. these arms or levers are each engaged by lugs or pins 91,arranged on opposite sides of said arms orlevers and secured to brackets92, carried by the heating-tank 75, in order that when the slide-rods 82and the gum-applying wheels are raised the said arms or levers willengage the upper pins and will cause the pawls carried thereby to sri pover the ratchet-wheels 88, while during the reverse movement the saidarms will engage the lower pins or lugs 91, so

as to raise the levers, and thus by means of the pawls- 89 impart rotarymotion to the ratchet wheels 88 and the gum applying wheels 77. Aspring-pressed pawl 93 is arranged on one of each pair of the pivoted1evers or arms 79, adapted to engage each ratchet-wheel 88 in order toprevent backward movement or too great rotary movement The outer ends ofV of the wheels 77, the rotary movement of said wheels being for thepurpose of supplying a new point of contact at each action of themachine. The arms 79 are normally held in the position shown in fulllines in Fig. 4 by means of springs 94, which are secured at one end tothe bar 81 and at their outer or free ends engage rods or bolts 95,which connect each pair of arms, so that when the Wheels 77 are raisedto the position shown at A in dotted lines in Fig. at any furthermovement thereof will cause the arms 79 to be rocked on their pivots 80,as shown at B, same figure, the said springs being adapted to return thearms to their normal position when lowered away from the strip or band25. Each of the wheels 77 has the gum-applying surface thereof engagedby a suitable doctor-plate 96, which may be secured to the arms orlevers 79 and are adapted to clean the wheels at points where the gum isnot needed and to remove the Slipertluous material from the gum-applyingsur-v face, so, that just the sufficient amount of gumming material maybe applied to the su rface of the stock strip or band. The stockband inpassing from the roller 27 is preferably carried beneath a plate 97,which is secured to the bed of the machine, and is nor-.

the wheels 77 permitted to have a rolling motion while in contact withthe stock-strip.

The upper die is provided with punches 99, which are pre fcrabl yV-shaped and have their inner edges substantially paralleland inalinement with the inner scoring edges of the side face plates of theupper die. These punches are adapted to coaet with the ends of theplates and with the inclined knives 68 of the lower die to cut out andremove V- shaped pieces, as shown in Fig. 17, so as to permit theinwardly-folding flaps and the corners to be more readily folded andsquared while the box is being formed. lhe punches have a shearingaction with the knives 68,

while with the plates 70a common punching action is secured, so that theV-shaped pieces will not be severed from the blank until the punchespass the edges of the end face-plates and enter the recesses 100 in thelower'die,

through which the removed pieces are forced or ejected. The dies insteadof having singlescoring means, as in my patent hereinbefore referred to,are preferably provided with double scoring devices in order that theblank may have double breaking or folding marks on its upper surface, soas to be more readily formed without breaking or injuring the materialin any manner. This scoring means may consist of ribs having doublescoring edges formed on the inner portions of the end and sideface-plates of the upper die, as best shown in Figs. 14: and 15. One ofthe scoring edges of each rib extends below the other and is adapted topass by the inner edge of the side face-plates (i9 and the endface-plates 70 of the lower die, so as to force this portion of theblank below the upper surface of the lower die at this point, while theshorter scoring edge of each rib presses upon or engages the surface ofthe blank over the side and end face-plates of said lower die,thusdonbly marking the blank to correspond with the rectangnlar form ofthe die. The dies may be also provided with double diagonally arrangedscoring devices, which may be at an angle of forty-five degrees to theinner scoring edges, so as to extend across the side faceplates thereof.In this case the scoring edges 101 are arranged on the upper die and areadapted to fit over and aline with the ribs 102 of the lower die 58, thesaid diagonal scoring permitting the box when formed to be folded overinto acollapsed position, as shown in Fig. 21.

In order to assist in folding the boxes and for compressing the samewhile being folded,

I preferably arrange brackets or standards 108 at or near each corner ofthe lower die, upon the upper portion of which are pivoted folding andseparating arms 104. These arms are retained in theirnormal position oraway from the die proper by means of springs 105, as shown in Figs. 3and 9, so as to abut against a lug or projection extending upwardly fromthe brackets or uprights 103, said arms being arranged at an incline onsaid brackets and having their outer or free ends provided with angularly-arranged fingers 106 and 107, which are adapted to work over theinclined knives 68 of the lower die in order to aline the corners orflaps of the box-blank and to separate the inwardly-folding ends of theside flaps forming the corners of the blank from the glue or gum on theend flaps, Fig. 12, until the plunger 62 has pressed the blank well intothe lower (lie.

The arms 104 are provided with extensions or lips 108, arranged near thepivots thereof, which are adapted to be engaged by pins 109, carried byarms or links 110, pivoted to the front and rear faces of the upper die,as best shown in Figs. 3 and 8. These arms 109 are arranged in recessesand pivoted at their upper ends to the face of the upper die and arenormally pressed outwardly by means of springs 111, so that when the dieis forced downward the pins or projections 109 will pass by the lips 108of the arms 1.0-1 without operating the same; but upon the upwardmovement of said die the said pins will engage the lips, so as to movethe same on the pivots to the position shown in dotted lines at onecorner of Fig. 9.

The plunger 02 is rectangular and box-like in form and is provided uponits inner surface with preferably knife-edged plates 112, which arecarried by arms or levers 113, pivotedupon the inner surface of theplunger and normally pressed outwardly by means of a curved spring 114,Figs. 14 and 16. The forward and rear outer surfaces of thefoldingplunger, at the corners thereof, are relieved equal to thethickness of the paper or material from which the box is formed in orderthat the inwardly-folding ends 1) of the side flaps may rest against thesurface of the plunger, and the end flaps b by resting against the endsI) of the blank and the outer surface of the plunger may have a flush orcontinuous surface against which to bear, as shown in Fig. 18. The loweredges of the plates 112 are adapted to enter the relieved portions ofthe plunger beneath the lower edge of the inwardly-folding ends I) ofthe side flaps, so as to bear against the lower edges of the end flaps bat the scoring-lines of the box in order to provide a firm and sharpbearing-surface throughout the width of the bottom of the box while theend and side flaps are be-- ing folded and to square the corners of thebox and assist in causing the ends I) to readily assume the positionnecessary for proper folding. This plunger is provided with a tu- 116,working in the cylinder 117, will create sufficient suction to cause theblank to fit snugly against the lower edges of said plunger, the plates112, together with the lower edge of the plunger, serving, as beforestated, to form a continuous bearing-surface at the scoring-lines of thebox, so that the latter when formed will be perfectly rectangular. Asthe box continues to be forced downwardly the pressure-wheels 118 pressthe end flaps b and the inwardly-folding ends I) of the side flaps b,Fig. 18, so as to bear firmly against the folding-plunger, so that theflaps will readily adhere. On further movement of the plungerthe foldedbox will be forced into one of the links 122 ofthe chain 121, so as torest upon the plate 124, located in the bed 22 of the machine. While thefolding-plunger is moving downward the ejecting-plunger 129 at theproper time is caused to enter the link in advance of the lower die,which c011- tains one of the boxes previously formed, and forces thesame out of the link'intothe trough 130, from which it passes to asuitable receptacle or is deposited on the floor, as the case may be.The folding-plunger raises the link 126 as it moves upwardly and carriesthe lever 125 and pawl 128 to the position shown in dotted lines inFig.6, so that as it is again lowered and before the plunger completesits downward movement the chain is advanced I the distance of one link,so as to place the link from which the box was previously ejecteddirectly under the die in the path of the folding-plunger. The pin 120of the foldingplunger engages the surface" of the lower die and forcesthe plates 112 out of contact with the box, so as not to withdraw thesame during the upward movement thereof, the stripping-springs, whichengage the upper edge of thebox, assisting in preventing the latter frombeing removed from the links of the endless chain. When the upper dieand plunger have returned to their normal position, as shown in Fig. 3,the cam 46 on the main shaft acting upon the free end of the pivotedlever 45 will cause'the downward movement of the rod 44,which,' by meansof the feeding mechanism heretofore explained, will cause the stockstrip or band 25 to be fed forward over the lower die the properdistanceand in position for the next blank to be formed when the upper die isforced downward, as already explained.

Ithus provideasimple and efficient machine which will readily make boxesfrom a strip or band and after being made may be folded or collapsedfortransportation or other purposes, and at the same time provide simpleand eflicient means for applying glue at the proper points along thestock-strip.

The elevated knives 68 of the lower die 58 may have substantiallyverticalinner surfaces, as at 130 in Fig-10. These inner surfaces may beof any suitable height and may be substantially parallel with theforward and rear edges of the rectangular opening in the die, so thatthe in wardly-folding ends I) of the side flaps b may be thrown suddenlyupward to assume a vertical position and to have the start of the endsof the box while being folded. In this case the folding-fingers may ormay not be used, as desired.

The diagonal scoring edges are shown as forming a double line, as at bFig. 17, upon the upper surface of the blank, so that the parts may becollapsed, as shown in Fig. 21; but it will be understood that thereverse of this may take place-that is, the double scoring edges may beplaced on the lower die and the rib on the upper die, so as to cause thedouble scoring to be on the under surface of the blank and the singlescoring on the upper surface thereof. The box in this case when formedmay be folded inwardly instead of outwardly; but in practice it isdesirable to use the form and arrangement shown.

\Vhile I have described the operation of forming only one member of thebox, it will be understood that a similar member maybe made by changingthe size of the dies so that one may serve as the lid and the other thetray or box proper, or simply the trays may be formed and shucks orenveloping-covers made in a different machine. In the former case thediagonal scoring of one member will extend across the scoring of theother, thus reinforcing and strengthening the box at this point.

It will be understood that it may be found desirable and that I may insome instances dispense with the folding-arms and the mechanism foroperating the same and that some of the features may be dispensed withor others substituted therefor without departing from the spirit of myinvention.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. In a machine for making paper boxes, thecombination with an open rectangular die provided with a clearance-spaceat each of its corners, of a similar second die having at each end twoelevated knives adapted to support the corners of the blanks above thelevel of the body portions thereof and to enter the respectiveclearance-spaces at the corners of the upper die, and afolding-plungeradapted to move vertically in the said dies by which the blanks areforced into the lower die, said knives having substantially verticalinner surfaces above the uppersu rfaces of the lower bular piston-rod115, which has an open piston 116 secured to the upper end thereof,adapted to enter a cylinder 117, secured to and carried by the slide orcross-head 59, so that on the downward movement of the plunger thepiston will create sufficient suction to force the blank snugly againstthe lowersurthe lower die and extend slightly beyond the inner surfacethereof, so as to press the glued parts together, as best shown in Figs.10 and 10. The boxes in being forced past the compressing-rollers 118will have the flaps tightly pressed together and on further movementwill be forced below the stripping-springs 11 i), which have their endsadapted to fit over the upper edges of the box when forced below thesame, so as to prevent the box from being carried upwardly during theupward movement of the folding-plunger. The folding-plunger is providedwith pins 120, Fig. 16, which are normally pressed outwardly by means ofthe spring 114 and leaves or arms 113 and are adapted to engage theinner surface of the lower die in order to force the plates 112 inwardlyto remove the pressure of the same from the folded ends of the, boxes.

As a means for carrying the boxes after being formed for a length oftime sufficient to permit the glue to set, so as to prevent theirseparation, I may arrange a passage through the lower die, through whichis adapted to travel an endless carrying belt or chain 121. This chainis made up of a series of box-like links 122, corresponding to the sizeof a box, and is provided at the joining-points with wheels 1:23, whichmay be grooved, so as to travel over a track arranged upon the bed 22 ofthe machine-frame. These links may be of any suitable form and areadapted to suecessively register with the inner surfaces of the dies inorder that each box as it is formed and forced downwardly by the plunger62 may be forced directly into the links upon a plate 121 or themachine-bed, so as to raise the bottom slightly above the lower edges ofthe sides when the box is formed. Various means for operating the linksmay beprovided, and, as shown in Figs. 2 and G, I have pivoted a lever125 to one of the uprights or standards of the frame upon the innersurface thereof, which is adapted to be rocked backward and forward bymeans of a link 126, pivoted at one end to the lever 125 and at itsotherend to a bracket 127 or other portion of the movable slide 50 whenthelatteris raised or lowered. To the lower end of the lever 125 i maypivot a pawl 12%, having one end thereof slotted or recessed and adaptedto engage pins projecting outwardly from the side of the links of thechain 121, the movement of said pawl being sufficient to advance thechain the dista ce of one link, a spring or other suitable device (notshown) being provided to prevent too great movement of said chain.

In advance of the dies, Figs. 2 and 6, I provide a plunger 129, which issecured at its upper end to the bracket or other portion of thefolding-plunger in order that the said plunger 120 during the downwardmovement of the folding-plunger 62 may force the box out of the link inadvance of the dies into a trough, as 130, Fig. 1, or into a suitablereceptacle provided therefor, said trough having its upper end open andregistering with the link beneath the plunger 129.

The construction and operation of the machine will be readily understoodfrom the foregoing description when taken in connection with theaccompanying drawings.

The parts being in the position shown in Fig. 3 and motion imparted tothe drivingshaft 47, the upper die will be forced downward by means ofthe connecting-rod and slide or cross-head 59 to the position shown inFigs. 1 and 2. By this movement the blank will be severed from the strip25 and properly scored, as shown in Fig. 17. As the upper die movesdownward the'projection 86 engages the nut or collar on the rod andforces the same downward, thereby-rocking the arms 83 on their pivotsthrough the extension 84 of one of said arms. This movement of the armsforces the rods 82 upward, carrying the gum or glue applying wheels 77to the position shown at A, Fig. 4, so as to apply glue to the edges ofthe stock 25, and on further movement the arms carrying said wheels willassume the position shown at B, same figure, causing the gum to bespread toward the edge of the stock strip or band with a rolling action.At this time the plunger 62 will be forced downward, carrying the blanktherewith, and simultaneously with this downward movement of the plungerthe upper die will be carried upwardly again, so as to cause the pins109 upon the arms to engage the lips 108 of the arms 101, thus rockingthe said arms 104 on their pivots and causing the fingers 107 to liftthe inwardly-folding ends I) of the side flaps above the gum at bheretofore applied to the end flaps b of the blank, Figs. 12 and 17,while the finger-106 engages the side flaps of the boxes, so that thelatter are properly alined and squared at this time. As the crossheadand upper die move upward the rod 85 will be raised by the projection 86acting against the spring 87 on said rod, said spring permitting furthermovement of the crosshead and projection after the glue-applying wheelsare returned to their normal position. The folding-plunger in themeantime continues to lower, and in so doing the piston of unequalheight, the shorter of which are adapted to engage and score thebox-blank against the solid supporting-surface of the other die, whilethe other ribs force a portion of the box-blank below the supporting-sorface of said die, thus doubly scoring the blank to permit the same tobe readily folded, substantially as described.

3. In a machine for making paper boxes, the combination with the upperopen rectangular die having a clearance-space at each of its corners anda cutting-punch adjacent to each clearance-space, of a similar lower diehaving recesses or clearance-spaces into which the upper punches areadapted to fit, and a folding-plunger adapted to fit and moveverticallyin the upper and lower dies and force the blank into the lowerdie, one of said dies having double scoring-ribs of unequal height, theshorter of which are adapted to engage and score the box-blank againstthe solid supporting-surface of the other die, while the other ribsforce a portion of "the box-blank below the supporting-surface of saiddie, thus doubly scoring the blank to permit the same to be readilyfolded, substantially .as described.

4. In a machine for making folding paper boxes, the combination with theupper open rectangular die, of a similarly-formed lower die adapted toregister with said upper die, and afolding-plunger movable in the diesand adapted to force the blank into the lower die in a folded positionduring the downward vmovement thereof, the said dies being proother die,while the other ribs force a portion of the box-blank below thesupporting-surface of said die, thus doubly scoring the blank to permitthe same to be readily folded, substantially asdescribed.

5. In a machine for making paper boxes, the combination with the upperdie, of alower die adapted to support the material from v which the boxis formed and to coact with the upper die in cutting and forming theblank,

a' folding-plunger adapted to fit into the said dies, avertically-movable cutting-table located on one side of the lower die, aknife located on one side of the upper die and arranged to depress thesaid table when the said die descends, and guide-rolls journaled uponthe table between which the stock strip or band is fed, substantiallyas-described.

6. In a machine for making paper boxes, the combination with the upperopen rectangular die having a clearance-space at each of its corners, ofa similar lower die having at each end two inclined elevated knivesadapt,- ed to support the corners of the blanks above the level of thebody portion thereof, to enter respective clearance-spaces at thecorners of the upper die and to coact with the upper die in cutting theends of the blanks to form the corners of at same, a folding-plungeradapted to fit into the dies, pivotal arms having the free outer endsthereof movable over the inclined elevated knives of the lower die forlifting the elevated corners of the blanks so as to aline and separatethe corner'of the blank from the gum on the end flaps thereof, and meansfor operating said arms, substantially as described.

7. In a machine for making paper boxes, the combination with the upperrectangular open die having a clearance-space at each of its corners, ofa similarly-formed lower die having two inclined elevated knives adaptedto support the corners of the blanks above the level of the body portionthereof, to enter the respective clearance-spaces at the corners of theupper die and to coact with the upperdie in cutting and forming theblanks, a foldingplunger movable vertically in thesaid dies, pivotalfolding-arms having angularly-disposed fingers at their free outer endsadapted to move over the inclined surface of the elevated knives of thelower die and to aline and separate the ends of the side flaps formingthe corners from the gum or glue on the end flaps while being folded,and means carried by the upper die for operating said foldingarms,substantially as described.

8. In a machine for making paper boxes, the combination with the upperopen rectan gular die having a clearance-space at each of its corners,of a similar lower die having at each end two inclined elevated knivesadapted to support the corners of the blanks above the level of the bodyportion thereof, to enter the respective clearance-spaces at the cornersof the upper die and to coact with the upper die in cutting the ends ofthe blanks to form the corners of the same, a foldingplunger movable inthe dies, pivotal arms having the free outer ends thereof movable overthe inclined elevated knives of thelower die for lifting the elevatedcorners of the blanks so as to aline and separate the corners of theblank from the gum on the end flaps thereof, and spring-pressed armspivoted to the upper die and having projections thereon adapted toengage portions of the foldingarms so as to move the latter on theirpivots,

substantially as described.

9. In a machine for making paper boxes, the combination with a pair ofdies, of pivotal folding-arms provided with fingers adapted to moveacross the face of the lower die, means carried by the upper die forengaging with and operating said arms,'and a foldingplunger movable insaid dies, substantially as described.

10. In a machine for making paper boxes, the combination with an upperand a lower open rectangular die, of spring-retained folding-armspivoted at or near the corners of the lower die so as to be moved overthe face thereof, the said arms having angularly-disposed fingers toassist in alining and holding the sides and corners of the box-blank andto enter between the corner-flap and the ends of the box-blank to keepthe ends and corners apart until the box is squared, andspringpressedlevers pivoted to the upper die and having projections thereon adaptedto engage lips or projections on the folding-arms so as to operate thelatter during the upward vertical movement of the upper die,substantially as described.

11. In a machine of the characterdescribed, a gum-applying device,comprising a vertically-movable support, arms pivotally held to saidsupport, springs normally holding the arms in one position, wheelsjournaied upon the-pivoted arms and mechanism for giving an intermittentrotary movement to said wheels, substantially as described.

12. In amachin'e for making boxes, a gumapplyingdevice, comprisingavertically-movable support, arms pivotally held upon the support,gum-applying wheels journaled on the arms, and a pawl-and-ratchetmechanism forgiving an intermittent rotary movement to said wheels,substantially as described.

13. In a machine for making paper boxes, the combination with a movablesupport, mechanism forimpartinga vertical movement to said support,rotatable gum applying wheels carried by the support, ratchet-wheelsrotatable with the gum-applying wheels, oscillatory levers movable withthe support, pawls arranged 011 the levers and engaging theratchet-wheels, and means for actuating the oscillatory levers duringthe vertical movement of the support so as to intermittently rotate theratchet and gum-applying wheels, substantially as described.

14. In a machine for making paper boxes, the combination with a suitablesupport, of means for imparting a vertical movement to said support,arms pivoted to the support intermediate its ends, springs retaining theouter or free ends of the arms upon the support, wheels journaled in theinner ends of the pivoted arms, oscillatory levers carrying pawlsarranged to engage the ratchet-wheels, and stationary brackets havinglugs or projections arranged on opposite sides of the oscillatory leversadapted to rock said levers on their pivots when the support and wheelsare given a vertical movement, substantially as described.

15. In a machine for making paper boxes, the combination with areceptacle for anadhesive material, of a support movable above saidreceptacle, mechanism for imparting a vertical movement to said support,arms pivoted to the support intermediate its ends, springs retaining theouteror free ends of the arms upon the support, gum-applying wheelssecured to shafts journaled in the inner ends of the pivoted arms,ratchet-wheels secured to the shafts, levers carrying pawls arranged tooscillate on the grooved wheel-shafts, and

means for actuating the oscillating levers d uring the vertical movementof the support to intermittently rotate the ratchet and gumapplyingwheels, substantially as described.

16. In a machine for making paper boxes, the combination with areceptacle for an adhesive material, means for heat-ing the saidreceptacle, a support movable above said receptacle, mechanism forimpartinga vertical shafts, levers carrying pawls arranged to 03--cillate on the grooved wheel-shafts, and stationary brackets having lugsor projections arranged on opposite sides ot' the oscillating leversadapted to rock said levers on their pivots when the grooved Wheels andsupport are given a vertical movement, substantially as described.

17. In a machine for making paper boxes,

the combination with the lower blank-forming die, of a folding-plunger,and means for moving the same within the lower die, said folding-plungerbeing substantially box-like in form and provided with swinging platesarranged upon the inner surface of the plunger and adapted to hold andsquare the bottom of the box-blank, means for forcing the platesoutwardly, and means adapted to engage the surface of the lower die forforcing the plates inwardly from the boxes, substantially as described.

18. In a machine for making paper boxes, a rectangular hollowfolding-plunger having swinging plates upon the inner surface thereofadapted to engage the bottom of the boxblank to hold the same whilebeing formed, means for normally forcing the plates outwardly, and pinsarranged in the plunger and adapted to force the plates inwardly againstthe action of the spring, substantially as described.

19. In a machine for making paper boxes, the combination with an upperand a lower die, of a folding-plunger adapted to fit and move in saiddies, acam-actuated slide for imparting a vertical movement to thefoldingplunger, knife-edged plates secured to leaves pivoted upon theinner surface of the folding-plunger, a spring normally forcing saidplates outwardly so as to engage and hold the lower edges of thebox-blank while being formed, pins slidingly held in the plunger andhaving the outer end thereof adapted to engage the in nor su rfacc ofthe lower die during the movement of the plunger so as to force theplates inwardly away from the box-bottom during the vertical movement ofthe plunger, substantially as described.

20. In a machine of the kind described, the combination with box-formingdies, of. the

folding-plunger movable in said dies, and a a cylinder moving with theupper die into IO pump adapted to exhaust the air from within which thepiston is adapted to work so as to the plunger, substantially asdescribed. exhaust the air from within the folding-plun- 21. In amachine for making boxes, the com.- ger to cause the blank to adhereclosely to its bination with the upper and lower open dies,v lower edge,substantially as described.

of the hollow box-like folding-plunger adapt- CAESAR R. BANNIHR. ed tomove Vertically in said dies, a hollow Witnesses: tubular piston-rodconnected withthe plun- W, B. HUTCHINSON,

ger and provided with a suitable piston, and BERTHA DEYO.

